IBM TotalStorage DS300 Best Practices Manual page 376

Figure 7-208 New Partition Wizard — Partition size
10.Select the drive letter from the drop down list which should be assigned to this
partition.
Figure 7-209 New Partition Wizard — Assign drive letter
11.Choose NTFS as file system. This is a requirement by the cluster server.
Check quick format and enter a descriptive volume label. The volume label
should contain the drive letter assigned to this partition. This helps in a
clustered environment to verify with one view on the other node or nodes the
assignment of the drives. Click Next.
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IBM TotalStorage DS300 and DS400 Best Practices Guide